Finding the Fourth Proportional to 311,861.42, 430,368.17 and 175,894.94
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Solution
The fourth proportional to 311,861.42, 430,368.17 and 175,894.94 is: 242,734.69
Step by Step Solution
- Step 1: Write the proportion equation
311,861.42 : 430,368.17 = 175,894.94 : x - Step 2: Convert to fraction form
311,861.42/430,368.17 = 175,894.94/x - Step 3: Cross multiply
311,861.42x = 430,368.17 × 175,894.94 - Step 4: Simplify right side
311,861.42x = 75,699,584,254.89 - Step 5: Solve for x
x = 75,699,584,254.89/311,861.42 - Step 6: Final answer
x = 242,734.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.